AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod

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Kyaw Stainless, a renowned stainless steel welding consumable supplier in Naypyidaw, Myanmar, is manufacturing superior AWS Class ER309LSi MIG and TIG Filler Welding Wires and Rods for welding dissimilar and stainless steels. Engineered with accuracy and uniform excellence, the fillers exhibit supreme weldability, corrosion resistance, and smooth bead finish. The silicon added enhances wetting properties, yielding clean, smooth welds. Kyaw Stainless provides top performance for manual and automated use, conforming to international welding specifications. ER309LSi works especially well on buffer layers, cladding, and joining stainless steel to carbon or low-alloy steel parts.

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ER309LSi filler wires comprise usually chromium (22–24%), nickel (12–14%), silicon (0.65–1.0%), and low carbon (<0.03%) to avoid carbide precipitation. The weld metal has tensile strength of approximately 580 MPa, yield strength of approximately 400 MPa, and elongation of up to 35%. The higher silicon content improves fluidity and weld bead finish. It offers excellent resistance to corrosion and oxidation in high-temperature as well as mild chemical exposures. ER309LSi provides strong, joint without cracks in dissimilar steels and preserves structural integrity under conditions of thermal cycling.

AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod Specifications

Classification	AWS A5.9, ER309LSi
Form	MIG spools, TIG cut lengths, Reels and Coils
Type Of Welding	Inert Gas Welding
Current	MIG-DCEP / TIG-DCEN
Diameters	.023”, .030”, .035”, .045”, 1/16”, 3/32”, 1/8”
Standard TIG straight lengths are available	36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request.
AWS ER309LSi MIG & TIG Filler Metal Application & uses	Hardware tools Metallurgy Machinery Construction Shipbuilding Petroleum Chemical plant Power sector Gas Industry

AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod Chemical Composition

C	Cr	Ni	Mo	Mn	Si	P	S	Cu
0.12	24.0-26.0	13.0-15.0	0.75	1.0-2.5	0.65-1.00	0.03	0.03	0.75

AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod Mechanical Properties

Yield, kpsi:	564
Tensile Strength, kpsi:	87
Elongation%, min:	41

We offer These Products as per DIN, ISO, JIS or ANSI Standard.

Why Choose AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod from Kyaw Stainless?

Largest Inventory

Customer Support

On Time Deliveries

ISO Certified

Types of AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod

Stainless Steel ER309LSi MIG Filler Wire

High-quality, silicon-enhanced welds for dissimilar metals, providing excellent corrosion resistance and bead appearance in applications like power generation and industrial fabrication.

Stainless Steel ER309LSi TIG Filler Wire

Superior weld quality and corrosion resistance for dissimilar metal joints, ideal for high-temperature and critical applications in industries such as petrochemical and structural fabrication.

Stainless Steel ER309LSi TIG Filler Rod

Corrosion-resistant welds with enhanced fluidity for dissimilar metals, suitable for high-stress applications in power generation, chemical processing, and industrial sectors.

AWS Class ER309LSi TIG and MIG filler rod and wire find general applications in chemical processing, power plants, ship construction, and automobile production. They are best for joining stainless steel to carbon or low-alloy steels, overlay welding, and restoring worn stainless steel parts. Their better resistance to cracking and smooth weldability qualify them for high-temperature uses, such as furnace components, heat exchangers, and boiler parts. Their superior corrosion resistance also provides long-term durability in challenging environments.

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AWS Class ER309LSi MIG and TIG Filler Welding Wires and Rods Uses

AWS Class ER309LSi TIG and MIG filler wires and rods are best suited for welding low-alloy or carbon steels to stainless steels and for the development of buffer layers prior to cladding. They can be used in refineries, food processing machinery, and chemical plants. The fillers can be used for joining components like piping systems, heat exchangers, and tanks exposed to high-temperature and corrosive media. The spatter-free welding and smooth bead appearance make them ideal for use in automated applications. ER309LSi provides excellent corrosion resistance and strength in structural fabrication as well as maintenance welding applications.